/*分为四步 *//*第1步：创建临时表空间 */create temporary tablespace user_temp tempfile ‘D:\oracle\oradata\Oracle9i\user_temp.dbf‘ size 50m autoextend on next 50m maxsize 20480m extent management local; /*第2步：创建数据表空间 */create tablespace user_data logging datafile ‘D:\oracle\oradata\Oracle9i\user_data.dbf‘ size 50m autoextend on next 50m maxsize 20480m extent management local; /*第3步：创建用户并指定表空间 */create user username identified by password default tablespace user_data temporary tablespace user_temp; /*第4步：给用户授予权限 */grant connect to username; grant dba to username;grant resource to username;grant debug any procedure to username;grant debug connect session to username;grant unlimited tablespace to username;